Lesser Noctule vs Sickener

Nyctalus leisleri compared with Russula emetica

Key Differences

• Lesser Noctule is Endangered while Sickener is Least Concern.

Taxonomic Classification

Rank	Lesser Noctule	Sickener
Kingdom	Animalia (Animals)	Fungi (Fungi)
Phylum	Chordata (Chordates)	Basidiomycota (Club Fungi)
Class	Mammalia (Mammals)	Agaricomycetes (Mushrooms)
Order	Chiroptera (Bats)	Russulales (Russulales)
Family	Vespertilionidae	Russulaceae
Genus	Nyctalus	Russula
Species	Nyctalus leisleri	Russula emetica

Conservation Status

Lesser Noctule

EN — Endangered

Sickener

LC — Least Concern

Physical Characteristics

Attribute	Lesser Noctule	Sickener
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Lesser Noctule

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Belgium, Denmark, Luxembourg, Sweden, and Ukraine. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Sickener

Habitat

Typically found in forest floors, decomposing wood, and soil ecosystems.

Range

Widely distributed across Asia (Taiwan), Europe (5 countries), and North America (United States).

Shared Countries

Both species can be found in 3 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇸🇪 Sweden